Improvement in gas-burners



Fl. Mae-A NN.

YGas-Burners.

" `Patented June 30,1374.A

Y Mlaga@ ,TZ ga/Ma NITB STATES ATENT @Frieto4 THOMAS F. MCGANN, OFBOSTON, MASSACHUSETTS.

IMPROVEMENT IN GAS-BURNERS.

Specification forming part of Letters Patent No. 152,568, dated June 30,1874 application tiled May 15, 1874.

tions of modifications embodying the general principles of the same,with the outer cap removed. Fig. 4 is an interiorview of a moditicationof a portion of the burner.

The object of the present invention is to direct and regulate thepassage of, so as to economize, gas, to produce a Steady flame, and

prevent the whistling or disagreeable noise occasioned by the passage ofgas through ordinary burners, and to ei't'ect these ends my improvementsconsist in a gas-burner constructed, arranged, and operating as I willnow proceed to describe and point out in the claim.

In the drawing, A represents a base of a burner formed with a bottominterior screwsocket, a, to screw on a gas-pipe, and formed with a topshoulder' and screw-stein, b, to receive a burner-cap, B, formed asusual, or otherwise, and provided with a lava or other tip, O. Avertical aperture extends through the center of the stem b and base A,and is 'formed at the top with screw-threads to or shell, D, formed toscrew, so as to be raised4 and lowered, on the tube or stem c, to admitthe bottom of the shell or cap D being raised above or brought down upona beveled or other seat formed on the top oi' the stem l), to lessen 0rincrease the opening caused-by the rising of the cap or shell betweenthe bottom of the cap or shell and its seat, andregulate the flow ofgas, which passes up through` the central aperture of the tube or stem'c, out through' the orces d, or slots' d', and perforated disk or collard, down between the tube c` and cap or shell D, and ont through theopening between -the bottom of the shell D and seat or top of stem b,into the outer cap B, from which it linds an exit through the tip in theform of flame. Above the cap or shell D, as represented in Fig. 1, is acheck nnt or cap, f, that turns on the top of the tube, c, and bearsupon the top of the cap or shell D, to regulate it and hold itinposition to admit the desired flow of gas; or the cap or shell D mayhave a solid top, as shown in Figs. 2 and 3, to form a cap for the tubec, whose central aperture may be readily freed of obstructions byremoving the cap and blowing through the tube; and for this purpose,besides its other functions, the nut or cap j' is preferable, for it maybe readily removed to open the end oi' the tube o 'without disturbingthe shell or cap D, when adjusted to admit the flow of gas desired.

The bottom of the inner periphery of the shell or cap D is beveled orotherwise formed to incline the passage between it a-nd the beveled orother formed seat of the base, and may, if desired, be notched out onthe bottom, as shown in Fig. 4, or otherwise constructed to form apassage or passages for the escape of gas between it and its seat.

By the above description, reference being had to the drawings, it willbe readily seen, without further explanation, that the gas pass ing upthe tube c, through its orices d, and then down between it and the shellD, enters, through the passage between the shell and seat, the outer capwith less impetuosity than when admitted therein as ordinarily, thusproducing an even ilow of gas without the disagreeable noise ordinari] yproduced by the direct and sudden inux of gas into the burner. It willbe also seen that the flow ot' gas is' readily regulated as desired byraising orlowering the cap or shell D by turning it on the stem or tubec, and enlarging or diminishing the passage between the bottom of thecap or shell and the seat, thus using the amount of gas required toproduce the desired flame and preventing` the waste of gas usuel inordinaryv burners.

Having thus described my mpro\'ements, what I claim its 1n y invention,and desire to have secured to me by Letters Patent, is-

In e gas-burner the Combination ot the per-- forzt'ted screw-stem ortube c, base A, cap or s110111), oep-nut f, and burner-cap B, all :tr-

rnnged and operating substantially ns mid for the purpose set forth.

In testimony whereof I have signed my nznne to this specification in thepresence of' two subsoribin Witnesses.

THOMAS F. MCGANN.

Witnesses:

UARRoLL D. XVRIGI-IT, SAML. M. BARTON.

